| Callitriche autumnalis | GB, VC76 Renfrewshire, Eaglesham | Robert MacKechnie | Watson Botanical Exchange Club Edward Charles Wallace Harold Stuart Thompson | 1/10/1933 | BIRM |
| Callitriche autumnalis | GB, VC60 West Lancashire, Ashton on Ribble | F C King | Watson Botanical Exchange Club Harold Stuart Thompson | 8/1885 | BIRM |
| Callitriche autumnalis | GB, VC58 Cheshire, Holford | J L Warren | Augustin Ley | 8/1870 | BIRM |
| Callitriche autumnalis | GB, VC49 Caernarvonshire, Llyn Idwal | John Ezra Woodhead | Watson Botanical Exchange Club Isaac A Helsby | 10/7/1934 | SLBI |
+ | Callitriche hermaphroditica | GB, VC89 East Perthshire, Loch of Clunie | | | 9/8/1881 | PTH |
| Callitriche hermaphroditica | GB, VC58 Cheshire, Holford | John Byrne Leicester Warren | London Botanical Exchange Club Charles Bailey | 8/1870 | MANCH |
| Callitriche hermaphroditica | GB, VC16 West Kent, Darenth | St John Marriott | Watson Botanical Exchange Club Isaac A Helsby | 7/1924 | SLBI |
| Callitriche hermaphroditica | GB, VC58 Cheshire, Rostherne Mere | Charles Bailey | Charles Bailey | 13/8/1892 | MANCH |
| Callitriche hermaphroditica | GB, VC58 Cheshire, Rostherne Mere | Henry (Harry) Searle | Charles Bailey | 11/8/1885 | MANCH |
| Callitriche hermaphroditica | GB, VC58 Cheshire, Rostherne Mere | Henry (Harry) Searle | Manchester Museum Charles Bailey | 8/1885 | MANCH |
| Callitriche hermaphroditica | GB, VC58 Cheshire, Rostherne Mere | Charles Bailey | Charles Bailey | 13/8/1892 | MANCH |
| Callitriche hermaphroditica | GB, VC58 Cheshire, Rostherne Mere | Charles Bailey | Charles Bailey | 13/8/1892 | MANCH |
| Callitriche hermaphroditica | GB, VC60 West Lancashire, Preston | F C King | Charles Bailey | 8/1883 | MANCH |
| Callitriche hermaphroditica | IE, VCH16,VCH26, Cong | Charles Bailey | Botanical Exchange Club of The British Isles Charles Bailey William Hunt Painter | 2/10/1885 | ABS |
| Callitriche hermaphroditica | IE, VCH26 East Mayo, Cong | Charles Bailey | William Hadden Beeby | 2/10/1885 | SLBI |
| Callitriche hermaphroditica | GB, VC89 East Perthshire, Marlee Loch | James Groves | Robert Kidston William Hadden Beeby | 15/7/1884 | SLBI |
| Callitriche hermaphroditica | GB, VC58 Cheshire, Rostherne Mere | Henry (Harry) Searle | William Hadden Beeby Arthur Bennett | 7/1885 | SLBI |
| Callitriche hermaphroditica | GB, VC85 Fifeshire, Loch Fitty | George Stephen West | Allan Octavian Hume Arthur Bennett | 9/1909 | SLBI |
| Callitriche hermaphroditica | GB, VC85 Fifeshire, Kilconquhar Cultivated | G West | Arthur Bennett | 1909 | SLBI |
| Callitriche hermaphroditica | GB, VC82 East Lothian, Dunbar | McTaggert Cowan | London Natural History Society Watson Botanical Exchange Club Edmund Browne Bishop McTaggert Cowan | 7/1911 | SLBI |
| Callitriche hermaphroditica | Sundwalden | Robert Collett | | 4/9/1863 | SLBI |
| Callitriche hermaphroditica | GB, VC92 South Aberdeenshire, Loch Callater | George Claridge Druce | William Hunt Painter | 7/1883 | ABS |
+ | Callitriche hermaphroditica | GB, VC89 East Perthshire, Loch of Clunie | Henry Maurice Drummond-Hay | | 16/9/1876 | PTH |
+ | Callitriche hermaphroditica | GB, VC89 East Perthshire, Loch of the Lowes | Henry Maurice Drummond-Hay | | 16/9/1876 | PTH |
| Callitriche hermaphroditica | GB, VC90 Angus, Rescobie Loch | William Gardiner | Croydon Natural History and Scientific Society Henry Franklin Parsons | 8/1843 | SLBI |
| Callitriche hermaphroditica | GB, VC49 Caernarvonshire, Llyn Padarn | | Douglas Montague Heath | 7/7/1921 | BIRM |
| Callitriche hermaphroditica | GB, VC58 Cheshire, Rostherne Mere | W Horton-Smith | | 23/8/1916 | MANCH |
+ | Callitriche hermaphroditica | GB, VC87 West Perthshire, Watston Loch | Robert Kidston | | 16/7/1884 | PTH |
+ | Callitriche hermaphroditica | GB, VC87 West Perthshire, Lake of Menteith | Robert Kidston | | 26/8/1884 | PTH |
| Callitriche hermaphroditica | | | Augustin Ley | | BIRM |
+ | Callitriche hermaphroditica | GB, VC89 East Perthshire, Marlee Loch | Edward Shearburn Marshall | | 19/7/1892 | PTH |
+ | Callitriche hermaphroditica | GB, VC88 Mid Perthshire, White Moss | Robert Hunt Meldrum | | 19/8/1886 | PTH |
| Callitriche hermaphroditica | GB, Lancashire, Lytham | | Moon | 1883 | MANCH |
| Callitriche hermaphroditica | GB, VC52 Anglesey, Valley | Reginald William Phillips | Albert Bruce Jackson | 9/1892 | K |
| Callitriche hermaphroditica | IE, VCH2 North Kerry, KIllarney lakes | Robert Albert Phillips | Allan Octavian Hume | 7/1899 | SLBI |
| Callitriche hermaphroditica | IE, VCH39 Co. Antrim, Toome | Robert Lloyd Praeger | Robert Lloyd Praeger | 6/1893 | DBC |
| Callitriche hermaphroditica | GB, VC52 Anglesey, Llanfaelog | John P Savidge | | 2/1/1956 | ABS |
| Callitriche hermaphroditica | GB, VC60 West Lancashire, Thurnham | John P Savidge | | 19/9/1956 | ABS |
| Callitriche hermaphroditica | GB, Lancashire, Thurnham | John P Savidge | John P Savidge | 11/9/1956 | ABS |
| Callitriche hermaphroditica | GB, VC17 Surrey, Wotton | William Robert Sherrin | | 7/1925 | SLBI |